Understanding the Distinction Between Expiry and Expiration

Difference Between Expiry and Expiration

These two words, expiry and expiration, are often used when something comes to an end. They sound similar but are used a bit differently. Let’s look at what they mean, how to use them, and learn a trick to remember the difference.

History of the Words

Expiry is often used in British English. It comes from the Old French word expirer, which means “to breathe out” or “to end.” Eventually, it started to mean the ending of something.

Expiration is common in American English. It also comes from the Old French word expiracion, with a similar meaning—to end or to breathe out.

How to Use Expiry and Expiration

Expiry

We use expiry to talk about dates, especially when talking about food, medicines, or documents in British English.

• Check the expiry date on the milk carton.
• The passport’s expiry is next month.
• The coupon has an expiry date printed on it.
• Pills have to be used before their expiry.
• Her driving license expired, and she noticed the expiry date too late.

Expiration

Expiration is more common in American English, also used for dates on food, medicines, and documents.

• He realized the expiration date on the yogurt was last week.
• Always check the expiration date on the medicine.
• The contract’s expiration is today.
• My credit card will reach its expiration next year.
• After the expiration of the lease, we moved out.

Trick to Remember the Difference

To remember the difference, think of “expiry” as being shorter and more common in the UK, just like how UK is a short form in words. “Expiration” is longer, like America, which also has more letters.

Summary

Both words refer to something that ends, like a date or a term. Use expiry more in British English, and expiration in American English. When in doubt, just remember the regions: UK for expiry and US for expiration.